DE3774083D1 - OPTICAL SWITCH AND OPTICAL KEYBOARD USING THIS SWITCH. - Google Patents

OPTICAL SWITCH AND OPTICAL KEYBOARD USING THIS SWITCH.

Info

Publication number
DE3774083D1
DE3774083D1 DE8787310007T DE3774083T DE3774083D1 DE 3774083 D1 DE3774083 D1 DE 3774083D1 DE 8787310007 T DE8787310007 T DE 8787310007T DE 3774083 T DE3774083 T DE 3774083T DE 3774083 D1 DE3774083 D1 DE 3774083D1
Authority
DE
Germany
Prior art keywords
switch
optical
keyboard
optical keyboard
optical switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE8787310007T
Other languages
German (de)
Inventor
Yuichi Obara
Kenichi Fuse
Yoshihiro Onuma
Takao Toya
Kazuo Chiba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP26867386A external-priority patent/JPH0785137B2/en
Priority claimed from JP1986173392U external-priority patent/JPS6380522U/ja
Priority claimed from JP17339486U external-priority patent/JPS63174313U/ja
Priority claimed from JP17339386U external-priority patent/JPS6380523U/ja
Priority claimed from JP28487486A external-priority patent/JPS63226618A/en
Priority claimed from JP1987043022U external-priority patent/JPS63150916U/ja
Priority claimed from JP1987056599U external-priority patent/JPS63164721U/ja
Priority claimed from JP62250072A external-priority patent/JPH0192712A/en
Priority claimed from JP25007387A external-priority patent/JPH0192713A/en
Application filed by Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Application granted granted Critical
Publication of DE3774083D1 publication Critical patent/DE3774083D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
    • G02B6/353—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being a shutter, baffle, beam dump or opaque element
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
    • H03K17/969—Switches controlled by moving an element forming part of the switch using opto-electronic devices having a plurality of control members, e.g. keyboard
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
    • G02B6/3544—2D constellations, i.e. with switching elements and switched beams located in a plane
    • G02B6/3548—1xN switch, i.e. one input and a selectable single output of N possible outputs
    • G02B6/3552—1x1 switch, e.g. on/off switch
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
    • G02B6/3568—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details characterised by the actuating force
    • G02B6/3574—Mechanical force, e.g. pressure variations
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
    • G02B6/3582—Housing means or package or arranging details of the switching elements, e.g. for thermal isolation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
DE8787310007T 1986-11-13 1987-11-12 OPTICAL SWITCH AND OPTICAL KEYBOARD USING THIS SWITCH. Expired - Fee Related DE3774083D1 (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP17339486U JPS63174313U (en) 1986-11-13 1986-11-13
JP17339386U JPS6380523U (en) 1986-11-13 1986-11-13
JP1986173392U JPS6380522U (en) 1986-11-13 1986-11-13
JP26867386A JPH0785137B2 (en) 1986-11-13 1986-11-13 Light switch
JP28487486A JPS63226618A (en) 1986-11-29 1986-11-29 Optical input keyboard system
JP1987043022U JPS63150916U (en) 1987-03-24 1987-03-24
JP1987056599U JPS63164721U (en) 1987-04-14 1987-04-14
JP62250072A JPH0192712A (en) 1987-10-03 1987-10-03 Optical switch
JP25007387A JPH0192713A (en) 1987-10-03 1987-10-03 Optical keyboard system

Publications (1)

Publication Number Publication Date
DE3774083D1 true DE3774083D1 (en) 1991-11-28

Family

ID=27576948

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787310007T Expired - Fee Related DE3774083D1 (en) 1986-11-13 1987-11-12 OPTICAL SWITCH AND OPTICAL KEYBOARD USING THIS SWITCH.

Country Status (4)

Country Link
US (1) US4836636A (en)
EP (1) EP0269320B1 (en)
CA (1) CA1326892C (en)
DE (1) DE3774083D1 (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5175780A (en) * 1988-12-29 1992-12-29 Fuji Electric Co., Ltd. Optical fiber switch
US5034602A (en) * 1989-07-21 1991-07-23 Texas Instruments Incorporated Optically activated keyboard for digital system having character back lighting
KR950001730B1 (en) * 1991-06-08 1995-02-28 주식회사 일진 Keyboard unit
US5212508A (en) * 1991-06-28 1993-05-18 Eastman Kodak Company Remote photo-electric interface in camera
DE4121977C2 (en) * 1991-07-03 1994-10-27 Wolf Gmbh Richard Medical instrument with a contactless switch for controlling external devices
DE4126492A1 (en) * 1991-08-10 1993-02-11 Clarson Apparatebau Gmbh Coupling switch in light conductor signal lead - connects electro=optical transducer to opto-electrical transducer by mechanically operable multiway switch unit
US5311410A (en) * 1992-10-29 1994-05-10 Hughes Aircraft Company Distributed lighting system with fiber optic controls
DE4309049C2 (en) * 1993-03-20 1995-04-13 Marquardt Gmbh Optical switching element
US5513286A (en) * 1994-06-08 1996-04-30 Syntec, Inc. White light dimmer for fiber optic illumination sources
US5802801A (en) * 1994-12-20 1998-09-08 Hohns; Charles D. Locker door and frame assembly
JP3552374B2 (en) * 1995-11-30 2004-08-11 ヤマハ株式会社 Signal output device and optical sensor
US5956444A (en) * 1997-02-13 1999-09-21 Amphenol Corporation Radiation absorbing shield for fiber optic systems
US6108466A (en) * 1998-09-17 2000-08-22 Lucent Technologies Micro-machined optical switch with tapered ends
US6205267B1 (en) * 1998-11-20 2001-03-20 Lucent Technologies Optical switch
US6173105B1 (en) * 1998-11-20 2001-01-09 Lucent Technologies Optical attenuator
US6181847B1 (en) 1999-05-10 2001-01-30 Ametek, Inc. Optical switch
WO2001038921A2 (en) 1999-11-23 2001-05-31 Nanovation Technologies, Inc. An optical switch having a planar waveguide and a shutter actuator
WO2002095944A1 (en) * 2001-05-23 2002-11-28 Koninklijke Philips Electronics N.V. Sensor, display device and recording device
DE10141161A1 (en) * 2001-08-16 2003-02-27 C & E Fein Gmbh & Co Kg Optical control device
US6614517B1 (en) * 2001-09-18 2003-09-02 Nayna Networks, Inc. Method and computer aided apparatus for aligning large density fiber arrays
US7042371B2 (en) * 2004-02-24 2006-05-09 Nokia Corporation Optical keyboard with geodesic optical elements
US7924175B2 (en) * 2007-03-26 2011-04-12 Motorola Mobility, Inc. Optical keypad for electronic device
US8717202B1 (en) 2013-03-14 2014-05-06 Aimpad, LLC Force sensitive input devices and methods
KR20150017945A (en) * 2013-08-08 2015-02-23 삼성전자주식회사 Signal Input Apparatus and Magnetic Resonance Imaging Apparatus comprising the same
US20160026275A1 (en) 2014-07-23 2016-01-28 Verifone, Inc. Data device including ofn functionality
US11770123B2 (en) 2018-01-05 2023-09-26 Darfon Electronics Corp. Optical keyswitch comprising a keycap having a light transmission area and a keycap projection area projected on a circuit board
US11108393B2 (en) 2018-01-05 2021-08-31 Darfon Electronics Corp. Optical keyswitch triggered by support mechanism having at least one rotatable frame enable a protrusion to move along with a key cap
US10637470B2 (en) 2018-01-05 2020-04-28 Darfon Electronics Corp. Optical keyswitch
US10544923B1 (en) 2018-11-06 2020-01-28 Verifone, Inc. Devices and methods for optical-based tamper detection using variable light characteristics
TWI678716B (en) * 2018-11-28 2019-12-01 達方電子股份有限公司 Optical axis keyboard
US11061482B2 (en) 2019-01-04 2021-07-13 Aimpad, LLC Force sensitive input devices and methods
CN111312547B (en) * 2019-06-18 2023-08-04 光宝电子(广州)有限公司 Key module, keyboard and electronic device using same
US11721500B2 (en) 2021-04-07 2023-08-08 Darfon Electronics Corp. Keyswitch assembly and support mechanism thereof
US11735379B2 (en) 2021-04-07 2023-08-22 Darfon Electronics Corp. Keyswitch assembly
TWI809916B (en) 2021-10-27 2023-07-21 達方電子股份有限公司 Sensing keyboard and sensing keyswitch thereof

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7430645U (en) * 1974-12-12 Siemens Ag Device for securing a key in a keyboard for electric typewriters or similar machines
US3519116A (en) * 1968-05-16 1970-07-07 Imagination Designs Eng & Sale Optical keyboard control means with series and parallel light circuits
US3668407A (en) * 1970-05-28 1972-06-06 Texas Instruments Inc Optical switching for keyboard encoder
US3787837A (en) * 1971-04-19 1974-01-22 Cogar Corp Modular optical apparatus
DE2139543B2 (en) * 1971-08-06 1974-03-07 Standard Elektrik Lorenz Ag, 7000 Stuttgart Photoelectric keyboard for data input devices or the like
US4023887A (en) * 1972-10-30 1977-05-17 General Optimation, Inc. Optical communication, switching and control apparatus and systems and modular electro-optical logic circuits, and applications thereof
US3856127A (en) * 1972-11-24 1974-12-24 U Halfon Photo-optical keyboard
US4013342A (en) * 1975-12-19 1977-03-22 Narodny Leo H Keyboard using optical switching
US4170731A (en) * 1976-08-30 1979-10-09 Miller Fluid Power Corporation Fiber optic control modules and system employing the same
US4247211A (en) * 1978-03-04 1981-01-27 Olympia Werke Ag Optically coded keyboard arrangement
US4327964A (en) * 1979-12-20 1982-05-04 Texas Instruments Incorporated Snap-action fiber optic connector
US4376566A (en) * 1980-03-03 1983-03-15 Sheltered Workshop For The Disabled, Inc. Fiber optic switching method and apparatus with flexible shutter
JPH0414725Y2 (en) * 1980-09-30 1992-04-02
US4442425A (en) * 1981-11-13 1984-04-10 Sperry Corporation Passive fiber optic keyboard
US4480184A (en) * 1982-03-16 1984-10-30 Burroughs Corporation Molded optical waveguide switching apparatus
US4417824A (en) * 1982-03-29 1983-11-29 International Business Machines Corporation Optical keyboard with common light transmission members
CH659149A5 (en) * 1982-03-29 1986-12-31 Olten Ag Elektro Apparatebau SWITCHING DEVICE WITH A SWITCHING PART AND A COMMAND AND REPORTING BUTTON STORED IN A HOUSING.
US4741590A (en) * 1982-09-07 1988-05-03 Amp Incorporated Fiber optic connector
EP0106172B1 (en) * 1982-09-23 1986-12-17 AMETEK, Inc. Self-contained optical fibre switch
JPS6014724A (en) * 1983-07-02 1985-01-25 テー・アー・トリウムフ―アドレル・アクチエンゲゼルシヤフト Photoelectric key unit
US4774407A (en) * 1986-03-04 1988-09-27 Allen-Bradley Company, Inc. Fiber optic switching system with link monitoring
JPH06114014A (en) * 1992-10-06 1994-04-26 Olympus Optical Co Ltd Hardness measuring apparatus for organic tissue

Also Published As

Publication number Publication date
EP0269320A1 (en) 1988-06-01
CA1326892C (en) 1994-02-08
EP0269320B1 (en) 1991-10-23
US4836636A (en) 1989-06-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee